MESON Chess Problem Database

Problem Display
PID: 173918 (B2r4/5N2/3Qpb2/B7/PpkNb2R/Rnp1pP2/2n1P3/3K4 w - - 0 1)

Stan, Mihail

1st Prize, Revista Romana de Sah, 1940

B2r4/5N2/3Qpb2/B7/PpkNb2R/Rnp1pP2/2n1P3/3K4

#2

11 + 10

1401 Postsjakk 1965
15202 Componist 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Bxh4
      • 2.Se5#
    • 1...Be5
      • 2.Sxe5#
    • 1...Bg5
      • 2.Se5#
    • 1...Be7
      • 2.Se5#
    • 1...Sca1
      • 2.Qxb4#
    • 1...Se1
      • 2.Qxb4#
    • 1...Sxa3
      • 2.Qxb4#
    • 1...Scxd4
      • 2.Qxb4#
  • Tries
    • 1.Sxc2?
      • threat
        • 2.Sxe3#
      • 1...Bd4
        • 2.Qxb4#
      • 1...Bg5
        • 2.Se5#
      • 1...Rxd6+!
    • 1.Qa6+?
      • 1...Kc5
        • 2.Bb6#
      • 1...Kxd4!
  • Keys
    • 1.Sxe6!
      • threat
        • 2.Bd5#
      • 1...Rxd6+
        • 2.Sxd6#
      • 1...Rxa8
        • 2.Qd3#
      • 1...Bxh4
        • 2.Se5#
      • 1...Bd4
        • 2.Qa6#
      • 1...Scd4
        • 2.Qxb4#
      • 1...Sbd4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • B(i);N_GUARD,XR(G)::S(J)
    • B(i);N_GUARD::S(J),XB(i)
    • B(i);N_GUARD::S(J)
    • S(a);N_GUARD::QAR1(I),XP(e)
    • S(a);N_GUARD,XR(C)::QAR1(I),XP(e)
    • S(a);N_GUARD,SBLOCK,XS(F)::QAR1(I),XP(e)
  • Tries
    • Try
      • S(F);P_PINB(g),P_SPINQ(I),XS(a)
      • Threat
        • S(F),XP(d)
      • Vars
        • B(i);N_PINQ(I),N_SPINB(g)::QAR1(I),XP(e)
        • B(i);N_GUARD::S(J)
      • Refutation
        • R(j);CHECK,XQ(I)
    • Try
      • Q(I);CHECK,P_SPINS(F)
      • Vars
        • K(f);P-FLIGHT::B(H)
      • Refutation
        • K(f);P-FLIGHT,P_SPINB(g),XS(F)
  • Actual
    • S(F);P_PINB(g),P_SPINQ(I),XP(h)
    • Threat
      • B(K)
    • Vars
      • R(j);CHECK,XQ(I)::S(J),XR(j)
      • R(j);N_GUARD,N_PINQ(I),XB(K)::QAB1(I)
      • B(i);N_GUARD,N_SPINB(g),XR(G)::S(J)
      • B(i);N_PINQ(I),N_SPINB(g)::QAB(I)
      • S(a);N_PINQ(I),N_SPINB(g)::QAR1(I),XP(e)
      • S(b);N_PINQ(I),N_SPINB(g)::QAR1(I)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).